Examples with IllegalBlockSizeException javax.crypto.IllegalBlockSizeException used on opensource projects

Example 36 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project robovm by robovm.

the class CipherTest method test_doFinal$BII$B.

public void test_doFinal$BII$B() throws Exception {
    byte[] b = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20 };
    byte[] b1 = new byte[30];
    AlgorithmParameterSpec ap = new IvParameterSpec(IV);
    Cipher c = Cipher.getInstance("DES/CBC/NoPadding");
    c.init(Cipher.ENCRYPT_MODE, CIPHER_KEY_DES, ap);
    try {
        c.doFinal(b, 0, 10, b1);
        fail();
    } catch (IllegalBlockSizeException expected) {
    }
    c = Cipher.getInstance("DES/CBC/NoPadding");
    try {
        c.doFinal(b, 0, 10, b1);
        fail();
    } catch (IllegalStateException expected) {
    }
    c = Cipher.getInstance("DES/CBC/NoPadding");
    c.init(Cipher.ENCRYPT_MODE, CIPHER_KEY_DES, ap);
    int len = c.doFinal(b, 0, 16, b1);
    assertEquals(16, len);
    c = Cipher.getInstance("DES/CBC/PKCS5Padding");
    c.init(Cipher.DECRYPT_MODE, CIPHER_KEY_DES, ap);
    try {
        c.doFinal(b1, 0, 24, new byte[42]);
        fail();
    } catch (BadPaddingException expected) {
    }
    b1 = new byte[6];
    c = Cipher.getInstance("DESede");
    c.init(Cipher.ENCRYPT_MODE, CIPHER_KEY_3DES);
    try {
        c.doFinal(b, 3, 6, b1);
        fail();
    } catch (ShortBufferException expected) {
    }
}

Example 37 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project robovm by robovm.

the class SealedObjectTest method testSealedObject1.

/**
     * SealedObject(Serializable object, Cipher c) method testing. Tests if the
     * NullPointerException is thrown in the case of null cipher.
     */
public void testSealedObject1() throws Exception {
    String secret = "secret string";
    try {
        new SealedObject(secret, null);
        fail("NullPointerException should be thrown in the case " + "of null cipher.");
    } catch (NullPointerException e) {
    }
    KeyGenerator kg = KeyGenerator.getInstance("DES");
    Key key = kg.generateKey();
    IvParameterSpec ips = new IvParameterSpec(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 });
    Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
    cipher.init(Cipher.ENCRYPT_MODE, key, ips);
    SealedObject so = new SealedObject(secret, cipher);
    cipher = Cipher.getInstance("DES/CBC/NoPadding");
    cipher.init(Cipher.ENCRYPT_MODE, key, ips);
    try {
        new SealedObject(secret, cipher);
        fail("IllegalBlockSizeException expected");
    } catch (IllegalBlockSizeException e) {
    //expected
    }
}

Example 38 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project robovm by robovm.

the class AlgorithmParameterSymmetricHelper method test.

@Override
public void test(AlgorithmParameters parameters) {
    KeyGenerator generator = null;
    try {
        generator = KeyGenerator.getInstance(algorithmName);
    } catch (NoSuchAlgorithmException e) {
        Assert.fail(e.getMessage());
    }
    generator.init(keySize);
    Key key = generator.generateKey();
    Cipher cipher = null;
    try {
        String transformation = algorithmName;
        if (blockmode != null) {
            transformation += "/" + blockmode;
        }
        cipher = Cipher.getInstance(transformation);
    } catch (NoSuchAlgorithmException e) {
        Assert.fail(e.getMessage());
    } catch (NoSuchPaddingException e) {
        Assert.fail(e.getMessage());
    }
    try {
        cipher.init(Cipher.ENCRYPT_MODE, key, parameters);
    } catch (InvalidKeyException e) {
        Assert.fail(e.getMessage());
    } catch (InvalidAlgorithmParameterException e) {
        Assert.fail(e.getMessage());
    }
    byte[] bs = null;
    try {
        bs = cipher.doFinal(plainData.getBytes());
    } catch (IllegalBlockSizeException e) {
        Assert.fail(e.getMessage());
    } catch (BadPaddingException e) {
        Assert.fail(e.getMessage());
    }
    try {
        cipher.init(Cipher.DECRYPT_MODE, key, parameters);
    } catch (InvalidKeyException e) {
        Assert.fail(e.getMessage());
    } catch (InvalidAlgorithmParameterException e) {
        Assert.fail(e.getMessage());
    }
    byte[] decrypted = null;
    try {
        decrypted = cipher.doFinal(bs);
    } catch (IllegalBlockSizeException e) {
        Assert.fail(e.getMessage());
    } catch (BadPaddingException e) {
        Assert.fail(e.getMessage());
    }
    Assert.assertTrue(Arrays.equals(plainData.getBytes(), decrypted));
}

Example 39 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project jgnash by ccavanaugh.

the class EncryptionManager method encrypt.

/**
     * Encrypts the supplied string.
     *
     * @param plain String to encrypt
     * @return the encrypted string
     */
public String encrypt(final String plain) {
    try {
        final Cipher cipher = Cipher.getInstance(ENCRYPTION_ALGORITHM);
        cipher.init(Cipher.ENCRYPT_MODE, key);
        return printBase64Binary(cipher.doFinal(plain.getBytes(StandardCharsets.UTF_8)));
    } catch (final InvalidKeyException | NoSuchAlgorithmException | NoSuchPaddingException | BadPaddingException | IllegalBlockSizeException e) {
        logger.log(Level.SEVERE, e.getMessage(), e);
    }
    return null;
}

Example 40 with IllegalBlockSizeException

use of javax.crypto.IllegalBlockSizeException in project jgnash by ccavanaugh.

the class EncryptionManager method decrypt.

/**
     * Decrypts the supplied string.
     *
     * @param encrypted String to decrypt
     * @return The decrypted string of {@code DECRYPTION_ERROR_TAG} if decryption fails
     * @see #DECRYPTION_ERROR_TAG
     */
public String decrypt(final String encrypted) {
    try {
        final Cipher cipher = Cipher.getInstance(ENCRYPTION_ALGORITHM);
        cipher.init(Cipher.DECRYPT_MODE, key);
        return new String(cipher.doFinal(parseBase64Binary(encrypted)), StandardCharsets.UTF_8);
    } catch (final InvalidKeyException | NoSuchAlgorithmException | NoSuchPaddingException | BadPaddingException | IllegalBlockSizeException e) {
        logger.log(Level.SEVERE, "Invalid password");
        return DECRYPTION_ERROR_TAG;
    }
}